MSA Advantage 4000 Series Full Face Single Port Air Purifying Respirator includes standard nose cup that reduces fogging in low temperatures or high humidity conditions and enhances worker performance. Respirator with advantage net head harness features a wraparound lens combined with a soft pliable silicon and hycar Facepiece that provides a total solution to air purifying respirator. Lens of the Facepiece is scratch resistant that delivers superior visibility and peripheral vision. It has major application in chemical industry construction mining nuclear welding painting and many more.